{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0x354f73759608e956081ca8ac7475f3d5b0c229c0d76749ccf60c7a22468c2eef",
    "signature": "0x8cec586bbd2ebcb9e96d1003fc84d0294f4afa65ba664c75e8ea2166c9099e613298bbaf05d1841a32c2665454a0389e569b11974b9616d29906bb515b40adfc1c",
    "signer": "0xFb9294627fb41f72bDfDECC8f54CfA5d6aC07098",
    "userId": "583146995"
  }
}